进行高空、舷外作业由（）负责现场指挥。 A.大副 B.值班驾驶员_爱下问搜题

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问题单项选择题

进行高空、舷外作业由（）负责现场指挥。

A.大副

B.值班驾驶员

C.水手长

D.木匠

答案

参考答案：B

填空题

二十世纪中后期，物理学中引入了“场”的概念。

（1）爱因斯坦说过，“场在物理学家看来正如他坐的椅子一样实在”。的确如此，磁场虽然看不见、摸不着，但可以通过它对放入其中的 ▲ _产生力的作用来认识它。

（2）像这样，用易观测的物理现象或物理量来认识或显示不易观测的物理现象或物理量，是物理学常用的一种研究方法。请再举一例并简要说明： ▲ _。

完形填空

When Dave was eighteen, he bought a secondhand car for ＄200 so that he could travel to and from work more__36__ than by bus. It worked quite well for a few years, but then it got so old, and it was costing him _37_much in repairs that he decided that he had better _38_it.
He asked among his friends to see if anyone was particularly_ 39_ to buy a cheap car, but they all knew that it was falling to pieces, so_40_ of them had any desire to buy it. Dave's friend Sam saw that he was _41_ when they met one evening, and said, “What's _42_, Dave?”
Dave told him, and Sam answered, “Well, what about advertising it in the paper? You may 43_more for it that way than the cost of the advertisement!” Thinking that Sam's 44_was sensible(合理的),he put an advertisement in an evening paper, which read “For sale: small car, _45_ very little petrol, only two owners. Bargain at 50.”
For two days after the advertisement first appeared, there was no _46_.But then on Saturday evening he had an enquiry(询问).A man rang up and said he would like to see him about the 47. “All right,” Dave said, feeling happy. He asked the man whether ten o'clock the next morning would be_48_or not. “Fine,” the man said, “and I'll _49_my wife. We intend to go for a ride in it to _50_ it.”
The next morning, at a quarter to ten, Dave 51 the car in the square outside his front door, _52_ to wait there for the people who had answered his advertisement. Even Dave had to _53_that the car really looked like a wreck(残骸).Then, soon after he had got the car as clean_54_ it could be, a police car stopped just behind him and a policeman got out. He looked at Dave's car and then said, “Have you reported this _55_ to us yet, sir?”

D．description

B．advertisement